Exploiting native Al2O3 for multispectral aluminum plasmonics

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dc.citation.epage1321en_US
dc.citation.issueNumber12en_US
dc.citation.spage1313en_US
dc.citation.volumeNumber1en_US
dc.contributor.authorAyas S.en_US
dc.contributor.authorTopal, A. E.en_US
dc.contributor.authorCupallari, A.en_US
dc.contributor.authorGüner, H.en_US
dc.contributor.authorBakan, G.en_US
dc.contributor.authorDana, A.en_US
dc.date.accessioned2016-02-08T10:33:58Z
dc.date.available2016-02-08T10:33:58Z
dc.date.issued2014en_US
dc.description.abstractAluminum, despite its abundance and low cost, is usually avoided for plasmonic applications due to losses in visible/infrared regimes and its interband absorption at 800 nm. Yet, it is compatible with silicon CMOS processes, making it a promising alternative for integrated plasmonic applications. It is also well known that a thin layer of native Al2O3 is formed on aluminum when exposed to air, which must be taken into account properly while designing plasmonic structures. Here, for the first time we report exploitation of the native Al2O3 layer for fabrication of periodic metal-insulator-metal (MIM) plasmonic structures that exhibit resonances spanning a wide spectral range, from the near-ultraviolet to mid-infrared region of the spectrum. Through fabrication of silver nanoislands on aluminum surfaces and MIM plasmonic surfaces with a thin native Al2O3 layer, hierarchical plasmonic structures are formed and used in surface-enhanced infrared spectroscopy (SEIRA) and surface-enhanced Raman spectrocopy (SERS) for detection of self-assembled monolayers of dodecanethiol. (Chemical Equation Presented). © 2014 American Chemical Society.en_US
dc.identifier.doi10.1021/ph500330xen_US
dc.identifier.issn2330-4022
dc.identifier.urihttp://hdl.handle.net/11693/24758
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/ph500330xen_US
dc.source.titleACS Photonicsen_US
dc.subjectAluminum plasmonicsen_US
dc.subjectMetal−insulator−metal cavitiesen_US
dc.subjectSurface-enhanced Raman spectroscopyen_US
dc.subjectSurface-enhanced infrared spectroscopyen_US
dc.subjectNanoparticlesen_US
dc.subjectHierarchical structuresen_US
dc.titleExploiting native Al2O3 for multispectral aluminum plasmonicsen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)